Immersion

Immersion 


Introduction
The day 11th of November we did an activity of immersion in the swimming pool of the school with our teacher of 'Vidal Marina' and three people that usually do this activity.

The materials we used to do the immersion course were:

• A bottle of compressed air.
• A controller o regulator: it's an object that you put in your mouth to take air of the bottle that has compressed air. There are two regulators, in case your teammate doesn't have more compressed air he or she can take the secondary regulator and use the air of your bottle.
• The jacket.
• Leads.
• Goggles.
• Flippers.
• Wetsuit. In our case swimsuit.

The duration of the whole activity were 2h but each person stayed between 10-15 minutes doing the activity.

The depth of the swimming pool is more or less 1,80m.

The quantity of air that we used is more or less the same as in the street because we were at 1 at.

To unzip, if we are in the sea and we had been diving in a media depth  and we have been there for hours, we have to stop while we are going up to expel the nitrogen that our body had caught. 

Conclusion 
The activity was great because it was funny and interesting but it was  a little bit stressing. You had to breathe with the regulator and you also had to control the pressure of the air and the quantity of air you had.

Bibliography 
http://www.wordreference.com
https://www.youtube.com/watch?v=RW2PRpMA6VM